Swapped from Nvidia to AMD 9070 XT caused one of my screen to glitch

Desktop Environments Plasma
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Hi All!

I am new to the forum and fairly new to the Linux world. I have a strange issue that I don’t really know how to describe.
I swapped my GPU from Nvidia 3080 to AMD 9070XT today and when I booted the system I got this strange glitch.
This only happens on my main screen using Wayland DE but when I login to X11 the issue is not there.

Here’s a picture of what it looks like

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Have you installed mesa-git and linux-firmware-git ?

That card is so new, the normal packages don’t have support for it yet.

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I have installed mesa-git haven’t tried linux-firmware-git. I’ll do that and will report back!

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So I installed linux-firmware-git did a reboot but to no avail. At the end of installing it I got “unable to write to pipe (Broken pipe).”

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You can ignore that. It doesn’t cause any issues.

Make sure you don’t have lingering nvidia config. Check /etc/kernel/cmdline and remove anything nvidia related.

If that doesn’t help and X11 is working, you might consider just using that for a couple of weeks until more packages get support for your card.

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There was a nvidia_drm.modeset=1 in that file, so I removed it, saved the file and did a reboot. Unfortunately the issue still persists.

It looks like I have to use X11 for now. Thanks for your help and the quick response!

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You need to run sudo reinstall-kernels after modifying that file.

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I ran sudo reinstall-kernels and rebooted but that didn’t fix it

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I decided to run a game out of curiosity to see if the full screen programs will look the same and they don’t. The game is displayed perfectly fine and there is no weird glitchyness happening until I alt-tab or get back to the desktop in any way.

I have an AMD CPU as well, is it possible that Wayland is using my integrated GPU?

When I check System Monitor, the GPU order is different. My Nvidia GPU used to be GPU 0, integrated GPU 1, but now 9070 RX is GPU 2.

I am assuming that as a fallback, Wayland decided to use my integrated GPU that’s why it’s glitching out. I will try to disable it and see if that will help

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That didn’t work either unfortunately. I guess my only option is to wait for the fix.

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FOUND A FIX!!!

Color accuracy in the Display Configuration is to blame. I had it set to ‘Prefer color accuracy’ which was causing the weird glitching.
Changed that to ‘Prefer efficiency’ and it was fixed immediately. No reboot required.

I am so happy, I almost gave up.

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